Consolidated Statements of Cash Flows - USD ($) $ in Millions	6 Months Ended
Jun. 30, 2020	Jun. 30, 2019
Cash Flows from Operating Activities:
Net (loss) income including noncontrolling interests	$ (292)	$ 375
Adjustments to reconcile net (loss) income to net cash provided by (used in) operating activities:
(Reversal of) provision for credit losses	831	94
Depreciation, amortization and accretion, net	300	248
Stock-based compensation—restricted stock units	42	41
Deferred income taxes	(232)	(86)
Net gains on sales of securities	(110)	(23)
Net decrease (increase) in securities borrowed or purchased under resale agreements	6,862	(1,638)
Net decrease (increase) in securities loaned or sold under repurchase agreements	(6,779)	1,632
Net decrease (increase) in trading account assets	(2,077)	303
Net decrease (increase) in other assets	1,194	(317)
Net increase (decrease) in trading account liabilities	(10)	(222)
Net increase (decrease) in other liabilities	353	(96)
Loans originated for sale	(2,560)	(1,138)
Net proceeds from sale of loans originated for sale	2,056	1,178
Pension and other benefits adjustment	(10)	(21)
Other, net	8	20
Total adjustments	(132)	(25)
Net cash provided by (used in) operating activities	(424)	350
Cash Flows from Investing Activities:
Proceeds from sales of securities available for sale	3,375	2,862
Proceeds from paydowns and maturities of securities available for sale	1,226	1,257
Purchases of securities available for sale	(1,785)	(2,623)
Proceeds from paydowns and maturities of securities held to maturity	1,306	2,633
Purchases of securities held to maturity	0	(1,749)
Proceeds from sales of loans	409	245
Net decrease (increase) in loans	1,449	(2,164)
Purchases of other investments	(176)	(55)
Other, net	(145)	(248)
Net cash provided by (used in) investing activities	5,659	158
Cash Flows from Financing Activities:
Net increase (decrease) in deposits	6,711	3,608
Net increase (decrease) in commercial paper and other short-term borrowings	(3,792)	(595)
Proceeds from issuance of long-term debt	613	1,703
Repayment of long-term debt	(958)	(3,559)
Other, net	(50)	(64)
Change in noncontrolling interests	0	(1)
Net cash provided by (used in) financing activities	2,524	1,092
Net change in cash, cash equivalents and restricted cash	7,759	1,600
Cash, cash equivalents and restricted cash at beginning of period	9,695	8,398
Cash, cash equivalents and restricted cash at end of period	17,454	9,998
Cash Paid During the Period For:
Interest	730	1,322
Income taxes, net	41	188
Supplemental Schedule of Noncash Investing and Financing Activities:
Net transfer of loans held for investment to (from) loans held for sale	(44)
Net transfer of loans held for investment to (from) loans held for sale		319
Securities held to maturity transferred to securities available for sale	0	170
Reconciliation of Cash, Cash Equivalents and Restricted Cash:
Cash and cash equivalents	9,641
Total cash, cash equivalents and restricted cash per consolidated statement of cash flows	$ 17,454	$ 9,998

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